At the beginning of the reaction, only a small amount of bubbles were produced. After a while, a large number of bubbles were produced. Finally, a reddish-brown deposit appeared at the bottom of the test tube. Read more exciting novels for free
There were different views on the reaction of hydrogen and alcohol. One view was that the reaction between alcohol (CH3CH20H) and hydrogen peroxid (H2O2) could produce esh (CH3Cho2) and water (2H2O), that is, CH3CH20H + H2O2 = CH3Cho2 + 2H2O. The other view was that there would be no change after mixing the two, and there would be no chemical reaction, especially when the hydrogen peroxid was medical grade. If the hydrogen peroxid was 100% concentrated, it would explode directly. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between the solution of potassium iodate and the solution of hydrogen peroxideneeded to be carried out under acidic conditions, so sulfuric acid was added to the reaction. The reaction equation was H2O2 + 2Ki + H2SO4 = I2 + K2SO4 + 2H2O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The mixture of hydrogen peroxide-hydrogen peroxide-acid and hydrogen iodinate-acid would result in an oxido-reduction reaction. The reaction equation is [H2O2 + 2Hi]. In this reaction, the valency of the oxygen element in the hydrogen peroxid decreased from-1 to-2, showing its oxidisation, while the valency of the iodine-element in the hydrogen iodinate increased from-1 to 0, showing its reduction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between iron and sulfuric acid could not produce hydrogen, and the reaction type was not a substitution reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between hydrogen sulfur radical (HS) and acid is a neutralizing reaction. The reaction equation is: HS + h = h s. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction of NH3·H2O with phosphorous acid (H3PO4) would produce a series of compounds. When the amount of phosphorous acid is excessive, the reaction will produce monobium hydrogen ortho-phate ($NH4H2PO4 $); when the amount of the solution is excessive, it will produce tri-aminium ortho-phate ($(NH4) 3PO4 $); when the amount of the two is in a specific ratio, it may also produce monobium hydrogen ortho-phate ($(NH4) 2HPO4 $). These reactions were acid and base neutralizing reactions, in which the phosphorous acid was the acid, and the aquamarine was the base. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical equation for the reaction between iron dioxide (Fe2 O2) and hydrogen (H2) is: Fe2 O2 + 3H2 = heating = 2Fe2 + 3H2 O. In this reaction, iron dioxide is reduced to iron (iron), and hydrogen is oxided to water (H <anno data-annotation-id ="0000000 - 4445 - 4445-a110-a160-a1800000000"> O </anno>. The reaction phenomenon is that the reddish-brown iron dioxide becomes a black solid because the iron produced is black. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Under acidic conditions, hydrogen dioxide (H <2 O <2>) and potassium iodate (Ki) will react. H ^O ^has a strong oxidisation property, I ^has a strong reduction property, and they undergo an oxido-reduction reaction. The ion equation is: H ^O ^+ 2I ^+ 2H ^= I ^+ 2H ^O. The reaction phenomenon was that the colorless solution turned into a yellow solution (the color of the generated iodine-water solution). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1. Reaction of carbonates and sulfuric acid: - The reaction principle was: <<CO3 ^{2 -}+2H ^+>> to H2O + CO2> - Reaction phenomenon: When adding sulfuric acid to a solution containing carbonates (such as a solution of Na2CO3), bubbles will be produced. This was because the reaction produced carbon dioxide gas. 2. Reaction of hydrogen radical and sulfuric acid: - The reaction principle was as follows: <<p>(Ox ^ -+H^+<p> to H2O>). - Reaction phenomenon: If the reaction of the hydrogen radical in an alkali-based solution such as soda ash with sulfuric acid, there would be no obvious visual phenomenon (such as no color change, precipitations, or gas generation, etc.), but the temperature of the solution would increase because the alkali-base neutralizing reaction was an exhalation reaction. If one touched the outer wall of the reaction container, one could feel the heat. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Since the acidic property of HCN was weaker than that of carbolic acid and stronger than that of hydrogen carbonate-based acid, hydrogen cyanate could not react with carbonate-based acid to release CO2. On the contrary, cyanidation would react to absorb CO2 and form hydrogen carbonate-based acid. The reaction formula was: CCN + CO2 +H O = HCN+ HCO. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>